Lower box body of power battery

• Main Authors: ZHANG YUE, XING YAJIE, MA SHUNFENG, WEI BIN, MENG XIANGLONG, ZHANG WEI, LI SHICHUN, ZENG FANYU
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING; VEHICLES IN GENERAL

The invention relates to the technical field of battery box bodies, in particular to a lower box body of a power battery. The power battery lower box body comprises a pultrusion process composite material bottom protection plate, a metal plate punch forming process aluminum alloy bottom plate, a rolling forming process steel profile frame, a compression molding process composite material liner, a pultrusion process composite material supporting beam, a pultrusion process composite material expansion beam and a compression molding process composite material upper cover; the pultrusion process composite material bottom guard plate, the sheet metal punch forming process aluminum alloy bottom plate, the compression molding process composite material liner, the pultrusion process composite material support beam, the pultrusion process composite material expansion beam and the compression molding process composite material upper cover are made of lightweight materials such as composite materials or aluminum alloy m